512 Selected Articles in Scientific Serials. (June, 1881. 
May 2.—Mr. A. A. Julien presented the results of some recent 
observations on fluid cavities in minerals; and the president (Pro- 
fessor J. S. Newberry) exhibited some interesting and remarkable 
fossils lately received at the School of Mines. 
AppaALACHIAN Mountain Crus, April 14.—Professor Charles E. 
Hamlin read a paper entitled “ Mount Ktaadn and its approaches 
as seen in 1879 and 1880.” A newly constructed model of the 
mountain illustrated the paper. 
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SELECTED ARTICLES IN SCIENTIFIC SERIALS. 
QuarTERLY JOURNAL OF Microscopicat Scrence.—April. The 
minute anatomy of the Branchiate Echinoderms, by P. H. Car- 
penter. On young stages of Limnocodium and Geryonia, by E. 
R. Lankester. The origin and significance of the metamorphosis 
of Actinotrocha, by E. B. Wilson. A further contribution to the 
minute anatomy of the organ of Jacobson in the Guinea pig, by 
E. Klein. On the development of certain microscopic organisms 
occurring in the intestinal canal, by D. D. Cunningham. On the 
cause of the striation of voluntary muscular tissue, by J. B. Hay- 
craft. On the relation of micro-organisms to disease, by J. Lis- 
ter. Observations and reflections on the appendages and on the 
nervous system of Apus cancriformis, by E. R. Lankester. 
THE GEOLocicAL MaGazinE.—April. Geology of British Co- 
lumbia, by G. M. Dawson. 
ANNALS AND Macazine or Naturat Hisrory.—March. On 
some new or little known Infusoria, by C. Mereschkowsky- On 
Synaxes, a new genus of Crustacea, by C. Spence Bate. On sili- 
cious sponge growth in the Cretaceous ocean, by Dr. Wallich. 
On Spongilla cinerea, by H. J. Carter. 
AMERICAN JOURNAL OF ScIENCE AND Arts.— April. Mono- 
graph by Professor Marsh on the Odontornithes, or toothed birds 
of North America, notice by G. B. Grinnell. Elements in ake 
graphic displacement, by W. J. McGee. The basin of the Gul 
arrangement of superficial earthy material, by W. C. Kerr. Dall ; 
observations on Arctic ice, and the bearing of the facts on glacia 
CaNnapiaAN Naturatist.— March 17. Revision of the baa 
snails of the Paleozoic era, with descriptions of new species, DY 
J. W. Dawson. Note on fossils from the red sandstone yen) 
of Prince Edward island, by F. Bain. On new Erian (Devonian 
plants, by J. W. Dawson. 
